Carton-sealing machine



W. A. JOPLILL DAB-TOE SEALING MACHINE. memento! mum IovJs, 1900.

977,097. Patented Nov. 29, 1910.

4 SRBBTHEEBT 1.

messes. Inventor m; 92,, MM M m; noun, IIfl'RI co. Wuumsrau, 04 c W. A. JOPLIN. BARTON SELLING URINE. A? PLIOLT10H mum v.15. 1m.

Patented Nov. 29, 1910.

l GE'BETHHDBT 2.

messes W. A. JOPLIN.

CAB-TOE SEALING MACHINE.

urmon'mx FILED now. 15. mm.

977,097. Patented Nov. 29. 1910.

4 SHEETS-SHEET 4.

ZUZZneSSeS Inventr UNITED STATES PATENT OFFICE.

WILLIAIl: A. J'OPLIN, OF LAWRENCE, MASSACHUSETTS, ASSIGNOR T0 PNEUMATIG SCALE CORPORATION mm), OF QUINCY, MASSACHUSETTS, A CORPORATION OF MAINE.

OAB'IOKSEALING MACHINE.

Patcnted'Nov. 29, 1910.

Application filed November 15, 1909. Serial No. 528,025.

To all whom it may concern:

Be it known that I, WILLIAM A. Jornm, citizen of the United States, res1din at Lawrence, count-y of Essex, State of Inssachusetts, have invented a certain new and useful Improvementin Carton-Sealing Machines, of which the following is a specification, reference being had therein to the accomganying drawings.

T e cartons in which package goods are put up by machine usually come in knockdown form and have end closing flaps which are intended to be subsequently folded to close both the bottom and the top. The carton has to be opened up and the bottom flaps closed and sealed before the goods are put into the package and after the package is filled the flaps which are to close the top have to be folded and sealed. Heretofore this flap closing operation has sometimes been done by hand and sometimes by machinery. 'hen it has been done by machin ery the bottom flaps have usually been closed and sealed upon one machine. the cartons have then been filled and the top closing flaps have then been closed and sealed by another machine especially designed for that purpose.

In some factories the business is notof sufiicient magnitude to warrant the employmentof inde endent machines for folding and sealing tlie bottom flaps and for folding and sealing the top flaps both on account of the expense of the machines and the space occupied by them.

I am aware of an application now pending, Serial No. 520,541 for a combination machine by which both the bottom of the unfilled carton and to of the filled carton may be folded and sea ed in one machine.

The object of this invention is to provide an improvement on said other invention.

The invention will be fully understood from the following description taken in connection with the accompanying dra and the novel features will be pointed out and clearly defined in the claims at the closeof the specification.

In the drawings -Figure 1 is a top Inn of amachine embodying the invention. ig. 2 is afront end view. Fig. 3 is aside view viewed from the left of Fig. 1, the gluing feed roll mechanism being omitted for the purpose of showing more clearly parts which would be obstructed by the gluin feed roll. 4 is an enlarged detail 0 one of the end fla-p closing devices. Fi 5 is a view taken from the same side as l i 3 showing the engagement of the glue rol with the glue feed roll. Fi 6 is an end view of Fig. 5 viewed from ilie leftof Fig. 5. Fig. 7 is a section on line 7--7 of Fig. 4:.

Fig. 8 is a detail view of the tapered spreader plate which spreads the flaps before gluing.

In carrying out the invention there is provided a step-by-step rotary s ider her ing radiating arms, some of w 'ch carry blocks to hold empty cartons in opened out form and to support them during the o ration of closing and sealing the bottom ups, and others of said arms have pockets to hold the filled cartons and to carry them throu h the mechanism for closing and sealin t e top closing flaps, said carton holding blocks and package holdin pockets alternating with each other and the same gluing mechamsm being used for folding and aali the tin s of the em ty cartons that are us for to ding and sea 'ng the top flaps of the filled packages.

Referring now particularly to the drawings,the spider is formed with a central hub 1 rotatably mounted on the column 2 and having on its upper end a circular disk 3 from which radiate a series of arms 4 shown in the drawings as eight in number and connected at their outer ends with an annular plate 5, said huh 1. disk 3, arms 4 and annular plate 5 together making up the spider. The spider or skeleton form is notessential to the invention as the disk 3 mightbe made of large enough diameter to in clude the arms at and annular plate 5 all as a solid disk but the spider form is preferable for lightness of construction and saving of metal and general convenience in the construction and handling of the machine. Mounted upon the ring 5 at regular intervals apart are a series of holders for the blocks which hold the em )ty cartons. These block holders consist o a pair of angle plates 6. (5. made fast to the ring 5 either by casting integral therewith or by bolting or any other suitable way and the blocks 7 are secured between the upright portions of the angle plates in any suitable way, as by screw bolts 8 for instance, so

that the blocks may be removed when desired and replaced by others of different. sizes. Arranged also upon the ring 5 at equal distances apart from each other and midway between the block holders are a series of pockets 9 to hold the filled cartons. These pockets are shown as formed with three walls -that is,two side walls and a back wall and being open on the front side. Each pocket is fastened between two angle plates 10, 10, made fast to the ring plate 5, the fastening means being such that when desired, the pockets 9 can be removed and others substituted for them. The means shown for securing the pockets between the an 'lc plates consist of bolts 11. Any suitab e means, however, may be employed.

The spider is given an intermittent or ste1)-by-step rotary movement in any well known manner, as for instance the well known Geneva stop notion. A detail description of the Geneva stop-monon is deemed unnecessary. In brief the star wheel 12 is formed with a series of slots 18 and scallops 2'2, eight in number, corresponding in number with the combined number of carton holding blocks and pockets so that during each revolution of the spider there will be eight periods of rest. The star wheel 12 is mounted fast on the hub of the spider or made integral therewith so that the spider will move in unison with the star wheel. The Geneva stop mechanism is driven by a shaft 13 having a beveled gear H engaging with a beveled gear 15 on the driving shaft 16. An arm on shaft 13 carries a roll 17 which engages with the slots 18 of the star wheel 12.

Each end of the carton is usually rovided with four flaps, the form which is preferred having two opposite flaps which extend only partway across the open end of the cartons so that they do not overlap; but when folded, their ends will meet or nearly meet. One of the side flaps folds over onto the first two folded flaps, and the last flap foldsover to cover the entire bottom or top as the case ma be. It is frequently, and perhaps usual y, customary tb apply glue to at least two of the flaps. In earl-lying out the presentinvention glue is a p ied to onlv one of the flaps; that is," the first folded of the side flaps, glue being applied to both faces of said flap, so that the inner face will adhere to the inner folded flaps and the outer face will adhere to the outside folded flap, thus making the gluing o ration much simpler. Further, thls g uing operation is performed by means of two movable glue rolls whose peripheries have yielding contact with each other and which are mounted on a reciprooable traveler in such manner that when the traveler moves in one direct-ion, it will carry the glue rolls across the path of the carton flap in such manner as to embrace the flap which is to be glued between them and thereby apply glue to both faces of the flap. For economy of time and other reasons the construction is such that when the traveler reci )rocates in one direction, the glue rolls will apply adhesive to both faces of the flap of the to end of the filled carton which is to be scale and the return movement of the traveler at the next period of operation will cause the glue rolls to engage the flap of the bottom end of the unfilled carton which will then be in position for gluing.

The mechanism for moving the yoke or traveler which carries the glue rolls is so timed with relation to the movement of the carrier for the cartons, that the forward movement of the glue rolls 19, '20, which apply the glue to one carton occurs at one period of rest of the spider and then the glue rolls remain stationary while the spider moves to bring the next carton into position to be glued and then at the next period of rest of the carton carrier the glue rolls move back to thguposition for engagement with the glue f roll 39, and on said return movement they embrace and glue the flap of said second carton. During said forward movement the glue rolls obviously carry more glue than they do on their return movement, because on the forward movement a part of the glue which they carry will be transferred to the carton, and by reason of the glue rolls carrying a thicker film of Inc on the forward movement the flap which is glued during said forward movement will receive a thic er film of glue than the one which is glued on the return movement. Now it is found in practice that the empty carton which is mounted on the block and which further on in the travel of the carrier passes under the pressure mechanism does not re uire so thick a film of glue as is required or the filled carton, because the holder block for the empty carton is solid and the glued flap of the camp carton being pressed between the solid bloc and the pressure plate the lued flap will be made to adhere to the enibracing flaps by the use of a less amount of glue than is re quired for the filled carton which does not have a solid block against which the flap is pressed, the contents of the filled carton not furnishing as solid aback as the block. For these reasons the mechanism is so arranged and timed that the pocket carrying the filled carton will be brought into position for the carton to be glued during the forward stroke of the glue rolls and the block containin the empty carton will be In position for the carton to be glued on the return stroke of the glue rolls.

The glue rolls 19 and 20 are journaled in a yoke 21 having their peripheries in contact with each other. The yoke 21 is slidably thus rotating the glue roll 20. The

mounted on a bracket 23. The mechanism for causing the sliding of the yoke and thereby the movement of the glue rolls s as follows: Mounted on a shaft 27 which 1s journaled inside of the column 2 is a pinion 28 which meshes with agear 29 mounted on astud 30. Said gear 29 is connected by a crank 31 with one end of a connecting rod 32, the other end of said connecting rod being pivoted to the yoke 21 so that at each rotation of the gear 29 the yoke 21 makes a complete reciprocation both forward and back carrying the glue rolls 19 and 20 wlth them. The pinion 28 is one-half the diameter of the gear 29 and has one-half the number of teeth so that it takes two revolutions of the pinion 28 to make one revolution of the gear 29. Therefore at each rotation of the shaft 27 the yoke 21 is given a full stroke in one direction and at the nextrotation of soaft- 27 the yoke is given a full stroke in the reverse direction.

The shaft 27 rotates intermittently, making one complete rotation during each period of rest of the spider and remaining at rest during the movement of the spider. The mechanism for giving to the shaft '27 said intermittent movement is as follows: Mounted on the shaft 27 is an intermittent gear 130 which meshes with an intermittentgear 131 on shaft 13, said shaft 13 being a continuously rotating shaft which. through intermediate mechanism, drives the spider as already described. The intermittent gears 13 and 131 are so constructed and their teeth hear such relation to each other as to give the intermittent rotation to shaft 27 alternately with the intermittentrotation of the spider as above mentioned.

it each movement of the yoke and the glue rolls in either direction they are adapt ed to engagebetween them one of the extended flaps of the carton if the carton is in the proper position as will be hereinafter described. It is important that the glue rolls should be ma de-to revolve as they travel over the flap of the carton, and it is also important that their peripheries should revolve at the same rate of speed that they travel in the reciprocating movement. The mechanism for this as follows: hlounted on the axle 33 of one of the glue rolls, which shown is the upper glue roll 20, is a pinion 34 which engages with a pinion mounted on a stud which projects from the yoke. Said pinion 35 engages with a staticnary toothed rack 36 so that as the yoke is reclprocated the pinion 35 will engage with the rack 36 and will be caused to revolve, thereby revolving the pinion 34. and ue roll 20 by its friction with the glue 1'01 19 causes the glue roll 19 to revolve. The

pinion 34 is of such size in relation to the diameter of the glue roll that the peripherles of the glue rolls will rotate at the same rate of speed as the reciprocating movement given to them by the movement of the yoke.

The mechanism for up lying glue to the glue rolls is as follows: gour'nalcd in bearings 37 is a shaft 38 on which is mounted a glue roll 39 which as it revolves dips into a glue pot. -10 and is constantly rotated by means of the intermediate connection with the driving wheel 41 mounted on a shaft 42. Said intermediate connections shown consist of the shaft- 44 having a flexible connection with the shaft 38 at one end and carrying at its other end a pulley 45 which is belted to a pulley 46 on the driving shaft 42. The toothed part of the rack 36 is of just suflicient len t-h so that on the outward stroke of the yo 1e 21 the pinion 35 will reach the end of the toothed ortion of the rack just before the end of t e stroke and the feed roll 39 is so positioned that at the outward stroke of the lower glue roll 19, it will be brought into engagement with the feed roll 39. The engagement of the rotating feed roll 39 with the glue roll 19 will cause the glue roll 19 to revolve and thereby a film of glue will be deposited from the feed roll upon the glue roll 19. The rotation of the glue roll 1!) which is in frictional engagement with glue roll 20 will also cause the glue roll 20 to revolve, thereby de )ositing a part of the film of glue upon tie glue roll 20.

As the carton approaches the position where the gluing is to take place, the flaps are all usually in the upri ht position. The cartons are moved broadside on, and it is the rear flap which is to be glued. The glue rolls move transversely of the path of the carton just at the rear of the carton after the carton has come to a period of rest. In order, therefore, to glue the lap, it is necessary to turn the said flan backward at an angle to the carton into the path of the glue rolls-that is-if the cartons are held in a vertical position, the flap will be turned into an approximately horizontal position pointing rearward. Inasmuch when the bottom flap of the empty carton is to be sealed, the carton is in an inverted position upon the l)lOClC--tllflt isthc bottom end of the carton is upwardthen so far as the operation of the gluing is concerned. the bottom of the empty carton will occu y the same position as the top end of the illerl carton occupies when the filled carton comes around. because the filled carton stands bottom downward, so that the same means for spreading and gluing and folding the bottom flaps of the empty carton are also adapted to spread and fold and glue the top flaps of the filled curton.

Not only is it necessary to fold outward the sideflap which is to be glued to bring itinto position to be engaged by the glue rolls,

but it is also desirable to turn down the two end flaps to get them out of the way temporarily during the gluing of the s1de flaps. Means for doing this is as follows: Secured to the yoke is a thin spreader plate 47 which extends between the ends of the glue rolls and pro'ects beyond the ends of the glue rolls an has ta red lateral portions 471 extending both t diwardly and rearwardly, the ta red forward portion being adapted to folt the flaps when the yoke and glue rolls reciprocate in one direction and the tapered portion atthe other end being adapted to fold the flaps of the nextcarton when the yoke moves in the reverse direction. This spreader plate is normally outside of the path of the carton. When the yoke and glue rolls reciprocate after the carton is at rest the spreader plate is carried transversely of the path of the upwardh ipro ecting flaps and engages the outer end ap b turning it inward and also engages the rear side flap folding it backward and as it continues the movement it turns the inner end flap it away from the carton, that is toward the center of the circular path of the cartons so that the two end flaps b, a and the rear side fla 0 will be turned down in time for the two g ue rolls 19 and 20 to enga e the rearwardly spread side flap The forward movement of the ydke is snfiicient for the glue rolls to travel over the entire length of the side flap 0. The spreader plate 47 is formed with a recess 48 between the glue rolls so as not to interfere with the engagement of the glue rolls with the side flap of the carton. This gluing of the flap takes place during one of the periods of rest. of the spider and carton. Then the glue rolls remain stationary while the s ider moves carrying the carton awa from t e glue rolls. After passing out from the spreader plate 4?, the flaps which have thereby been spread down spring back again toward the vertical position, and it is now necessary to fold inwardly the two end flaps and to fold down upon said two end flaps the side flap which has been glued and then to fold outside. of all the other side flap. The mechanism for doing this is as follows: Pivoted at 49 to a stationary portion of the machine above the path of the moving carton is a downwardly hanging arm 50 to the lower end of which there is pivoted at 51 a finger-'52 intermediate its ends, said finger extending crosswise of the dimction of movement of the carton and being adapted to engage with the outer end flap of the ca 1"- ton. A spring one end of which is secured to the arm 50 and the other end of which is secured to aprojection on the finger 52, tends normally to hold the finger 52 tilted upward as shown in Fig. 4.

The forward portion of the finger 52, that is the )ortion at the right of the pivot 51 as viewed in Fig. at, which engages the flap of the carton, is preferably made thinner than the rear portion of the 1 er which is at the left of the pivot- 51 in or or to not interfere with the folding of the second flap onto the first flap before the finger 52 is withdrawn. The purpose of having the finger 52 first engage the flap of the carton at an upward angle is because the flap bein in an approximately vertical position, if file finger should engage it straight on, that is horizontally, there would be danger of the flap being punctured by the finger. Therefore it is desirable to have the finger tilted upward un til the flap is partially folded after which the finger may be brought into a horizontal position to complete the folding so that the fin er will atno time engage the flap at rightangles thereto.

The means for actuating the finger 52 as above described is as follows: Secured to a downwardly hanging late 54, which is a part of the frame, a lock 55 slightly oil'- set from the plate on which the rear end of the finger 52 normally rests, forming a stop which limits the u ward tilt of the forward end of the finger. rojecting laterally from the rear end of the finger 1n the opposite direction between the plate 54 and the finger 5-2 is a roll 56 which, after the finger has been swung forward, is adapted to engage the upper edge of a block 517 which is secured to the face of the plate 54 between the block 55 and the plate 54. This block 57 is curved at its upper rear corner, as viewed in Fig. 4. where the roll 56 first engagm it, so that as the roll rides over the upper edge of the block 57, the finger will gradual]; be brou ht down into a horizontal position, and during the latter part of its movement it rides on the horizontal u Jper edge of the block of, maintaining the ger 52 during the remainder of its forward movement in a horizontal position. When the arm- 50 swings backward withdrawing the finger from the flap, as soon as the roll 56 rides hack 0E of the sloping back of the block 5?, the spring 53, which all the time exerts an upward pull on the finger pulls the finger 52 again into its tilted POSllIOIl. The block 55 is adjustable vertically in order to regulate or varv the angle of inclination of the finger 52. This adj ustubility may be secured by forming the plate 54 with a vertical slot 58 and clamping the block to the plate by a bolt 59 which passes through the block and said slot. Preferably also the horizontal block 57 is adjustable laterally so as to vary the point at which the finger 52 will be brought down into a horizontal position. This may be done by formin the plate 54: with an elongated horizontal ot 60, the said block 57 being secured to the plate 54 by bolts 61 )assing through said block 57 and elongated slot 60.

The mechanism for actuating the arm 50 is as follows: Pivoted at one endto said arm is. ec ng h e. epn s te end pivoted to one arm of a bell crank 63 which is pivoted on a. stud 64, The otherarm of said bell crank 63 is pivoted to a connecting rod 66 which is ad ustably connected to a 'rod 67 whose lower end is connected with a fork 68 which straddles the shaft 16 merely as a guide. Mounted on the shaft 16 is a cam 69 having in its side a cam path with which there engages a roll (not shown) projecting from the side of the fork 68 as the cam 69 revolves. The connecting rod 67 is raised and lowered and thereby, through the connecting mechanism, actuating the arm 50, rocking said am so as to give the proper movement to the folder fifir 5:2. The other end flap) is folded by a ger 7-2, which is actuated y mechanism corresponding exactly to the mechanism which actuates fin er 52, the only diiference being that one is right and the other left. This mechanism includes arm 70. finger T2, bell crank 73, connecting rods i6 and 77, fork 78 and cam 7 9.

The glued flap, which is the rear flap the way the carton is moving, should next be folded. The mechanism for doing this is as follows: Fast to arockshaft 91 1s a lever 92 which hangs down over the path of the carton and carries at its lower end a roller 90. The rockshaft 91 is actuated in such manner that after the carton has come to one of its periods of rest, the arm 92 will be caused to sweep down and forward just behind the carton in the same direction that the carton has moved and engage the rear face of the upwardly extending glued flap and the continued onward sweep of the lever 92 will fold the said glued flap down u n the previously folded end flaps and than after the spider begins to move again, the lever 92 will be turned back to its normal position so as not to interfere with the up wardl; extending flaps of the next carton as it passes beneath.

The mechanism for actuating the rockshaft 91 is as follows: The rockshaft- 91 is pinned to a lever 93, one end of which is ivoted to a connecting rod 94, the other en of said connecting rod being pivoted to one end of a cam lever 95, the other end of said cam lever being pivoted to a bracket 96. The com lever 95 carries a roller which on gcs with apath cam 97 mounted on sha 16. The cam 97 is so constructed and timed as to give the roper movementto the mechanism for to ding the glued fla 'ust after the two end flaps have been fold Hung over the path of the moving cartons just beyond the point where the carton asses from the point where the glued flap is folded is a roller 98 which engages the forward side flap which is the last unfolded flap and folds said flap as the carton moves on beneath it. After passing the folding roller 98, the carton passes on beneath a pressure plate 99 which holds the flap in its olded piosition for a time to prevent springing bac while the carton passes to a POSI- tion beneath a press plate 100.

At one of the periods of rest of the spider after the flaps have been folded the carton stops beneath the press plate 100. Mechamsm is provided for causing this press plate to descend and to press down upon the top of the outside folded flap durin this period of rest. The mechanism provided is as follows: The press plate 100 is carried by an arm 101 in crumed at- 102. The actuating mechanism which is shown is a toggle joint mechanism. Pivoted to the upper side of the press plate 100 is a link 103 whose upper end is pivoted to one arm of the bell crank lever 104, said bell crank being pivoted at 105, the other arm of said bell crank being pivoted at 106 to the upper end of the fork 107. Passing loosely through the lower end of the fork 107 is a connectmg rod 108 whose lower end is ivoted to a cam lever 109. The upper en of said connect ing rod 108 passes some distance 11 through the lower end of the fork 107 an through a coil spring 110 mated as to its lower end on said for the upper end of said spring bearim against a head 111 on said connecting rod. The object of said s ring is to give the pressure plate 100 a yie ding pressure when the connecting rod 108 is pulled down to straighten the toggle joint and thereby depress the plate 100. The cam lever 109 is fulcrumed at 112 and carries at its forward end a roller 113 which engages with a path cam'114 on shaft 16. The cam 114 is so formed as to cause the premure plate 100 to descend in time to engage the last folded flap of the carton just as itpasses from be neath the plate 99. The object of this pressure plate is to ress the folded flaps firml; dur one of t e dwells of the spider so that tie glue may become set sufliciently to prevent the flaps from springing 0 en when the carton is moved away from t e press. This is of greater importance in sealing the bottom flaps of the empty carton than of sealing the top flaps of the filled carton although it is useful in both cases. The pressure plate is raised before the spider begins its next movement.

As previously described, the outer side of the pocket 9 is left open. The purpose of this is to enable the filled carton to be pushed out of the ocket at the end of the sealing o erat-ion. his removal of the cart-on takes p ace at a period of restin the rotation of the spider after it passes the pressure plate. In the machine shown, it is at the extreme right hand in 1. It is important that the mechanism for doing this shall be so filmed in relation to the mechanism for actuating the other parts of the machine that the removal should take lace during said riod of rest, and it is a so important that push mechanism shall be operated only when .3 there is a ocket for a filled carton posil the filled cartons alternating with each other,

t1on, that is in the machine as shown in the i means for intermittently rotating said cardrawings, at every alternate period of rest I rier, means for gluin of the spider, because there is alternately a block and a pocket brought into that position and the push mechanism is intended to operate onl in connection with the filled cartons and not with the empt cartons. The mechanism provided is as to ows: The rear wall of the pocket 9 is formed with an opening (notshown) through which a p unger may enter to push the filled cartons out through the pocket. A horizontal plunger rod 115 is slidably mounted in a bracket 116 and carries at its forward end a push plate 117 which, when the plunger moves forward, is adapted to pass through the opening in the rear wall of the pocket- 9 and engage the carton held therein and to move forward and to push the carton out of the pocket. Mechanism is provided as follows: Fast to the rear end of the plun er rod 115 is a slotted cross-head 11s. Bi i'dl mounted on shaft 119 'm a pinion 120 and fastto the lower end of shaft 119 which carries the pinion 120 is a crank 1:21. The rear end of the crank 121 carries a pin 1:22 which e ges with an elongated slot 123 in the cross-head 118 so that as the pinion 11:20 reyfilt es, the plunger rod 115 will be given a {61181 116 will cause it to travel in a right For the reason before stated it is desirable that the plunger shouldmove forward only for each alternate period of rest of the spider. Fast to the face of gear 29 is an intermittent gear 124: whose teeth are ada ted to engage with the teeth of the pinion 120. As already described the gear 29 makes only a half revolution for each revolution of the shaft 27, and shaft 27 makes one revolution for each period of movement of the spider; therefore the gear 124 makes one complete revolution for each two revolutions movement of the spider. The toothed portion of the intermittentgear 12-1 is so proportioned that during one-half revolution of the gear 12% the gear 120 will be made to revolve and during the nextone-half revolution the plain edge of the gear 12A will pass by the gear 120 and therefore cause no movementof the gear 120; thus the plunger rod 115 is actuated only at each alternate period of movement of the spider. At each rotation of the gear 120 the crank 121 will cause the l r to move forward and back.

' at claim is 1. In a machine for closing and sealing the flaps of cartons, arotary carrier having of the shaft 27 and for each two periods of is; l

ding movement and the guide-ways in the i a series of holders each adapted to hold an empty carton bottom upward, a series of pockets each adapted to hold a filled carton, said holders for the empty cartons and for and sealing the end closing flaps for the ttom of the unfilled cartons and the top closing flaps of the filled cartons at a certain point in the travel of each carton, the pockets for the filled cartons bein open on their outer sides, a reciprocable plunger and mechanism actuated at each alternate period of rest of the carrier which engages one of the filled cartons at one of the stations of rest after it has pamed the sealingmechanism to eject the filled carton from the pocket.

:2. In a machine for closing and sealing the flaps of cartons, a rotary carrier for the cartons, means for intermittently moving the carrier, two glue rolls normally located out side the path of the cartons means for reciprocating said glue rolls whereby said glue rolls will at each stroke in either direction embrace between them one of the flaps of the carton and travel across the same gluing both faces thereof, means for controlling the movement of said glue rolls and carton carrier whereby one carton will be glued during the forward stroke of the glue rolls during a period of rest of the carton carrier the glue rolls remaining stationary while the carton carrier moves to bring another carton into position for gluing, the glue rolls then being moved through the return stroke and embracing the flap of said second carton.

3. In a machine for closing and sealing the flaps of cartons, a rotatable carrier having a series of blocks each adapted to hold an empty carton slipped thereon, a series of pockets each adapter to hold a filled carton said pockets alternating with the said blocks, flap gluing mechanism, mechanism for actuating sai carrier whereby the empty car- 110 tons and filled cartons are alternately brought to a position to be glued and mechanism for actuating said flap gluing mechanism whereby said gluing mechanism applies glue alternately to a flap of one ofihe empty cartons i and to a flap of one of the filled cartons, said pockets being 0 en on the outer side and closed on the ot 181 three sides, and means whereby after the filled cartons ha re passed the gluing mechanism the said filled packages are ejected from the pockets through the outer open side thereof.

4. In a machine for closing and sealing the flaps of cartons, a rotary carrier having a series of blocks each adapted to receive 1% an empty carton slipped thereon in an inverted position, a series of pockets each adapted to hold a filled carton in an upright position, means for rotating said carrier, means for turning outwardly one of the flaps 13o on the uppermost end of each of the cartons in turn whether filled or unfilled, gluing mechanism and means for actuating said gluing mechanism whereby the glue will be applied to said turned flap of either the unfilled or the filled cartons at a redetermined point in the movement of eac 1 carton, said pockets for the filled cartons being open on their outer sides and having an opening through the wall of the inner side, a reciprocable plunger and mechanism which at a certain point in the position of the pocket after it has passed the gluing mechanism actuates the plunger to engage the inner face of the carton through the opening in the rear wall of the pocket and eject the carton from the pocket.

5- In a machine for closing and sealing the flaps of cartons, a carrier for the cartons, a reciprocable glue-roll carrier, two rotary glue rolls mounted thereon paraliel with each other and so located that their peripheries are adjacent to each other, means for moving said glue roll carrier in such manner as to cause the two glue rolls to embrace between them one of the flaps of the carton and travel across the same gluing both faces thereof, and means for positively rotating one of the glue rolls during the reci rocation of the glue-roll carrier indepenc ently of its contact with the flap with which itengages.

6. In a machine for closing and sealing the flaps. of cartons, a carrier for the cartons,

" a reciprocable glue-roll carrier, two rotarv glue rolls mounted thereon parallel wit each other and so located that their peripheries are adjacent to each other, means for moving slid glue-roll carrier in such manner as to cause the two glue rolls to embrace between them one of the flaps of the cartons and travel acrom the same gluing both faces thereof, means for positively rotating one of the glue rolls during the rcciorocation of the glue-roll carrier independently of its contact with the fiap with which it engages and means for regulating the speed of movement of the periphery of the glue roll thus actuated whereby the rotary movement of the glue roll has the same speed the glue-roll cartier.

7. In a machine for closing and sealing the flaps of cartons, a carrier for the cartons, a reciprocable glue'roll carrier, two rotary glue rollsmounted thereon normally located outside of the nth of the cartons, means for moving said g ue-roll carrier in such mannor as to cause the two glue rolls to embrace between them one of the fla s of the carton and travel across the same g uing both faces thereof, a toothed rack, gear connection between the said rack and one of the glue rolls,

including a pinion on the glue-roll shaft, whereby said glue roll is caused to rotate during the movement of the glue-roll carrier until the glue roll has traveled to the end of the toothed portion of the rack, a rotatin glue feed roll so located that when the sai glue-roll carrier reaches the end of its stroke in one direction the pinion on the glue-roll shaft will have reached the end of the toothed portion of the rack and the glue-roll will engage with the glue feed roll.

8. In amachine for gluing and sealing the flaps of cartons, a rotary carrier having a series of carton holders a reciprocahle glue-roll carrier, two rotary glue rolls mounted thereon normally located outside of the path of the cartons, means for moving the carton carrier intermittently, means for moving said glue-roll carrier during one of the periods of rest of the carton carrier in such manner as to cause the two glue rolls to embrace between them one of the flu s of the cartons and travel across the same g uing both faces thereof, a toothed rack, gear connection between the said rack and one of the glue rolls whereby said glue roll is caused to rotate when the glue-roll carrier moves until the glue roll has traveled to the end of the toothed portion of the rack, the other glue roll being rotated by frictional engagement with an op osing surface, a rotatm glue feed roll so ocated that when the said glue-roll carrier reaches the end of its stroke in one direction the pinion on the glue roll shaft will have reached the end of the toothed portion of the rack and the Inc roll will engage with the rotating glue eed roll.

9. In a machine for sealing the flaps of cartons, a carton carrier, means for intermittently moving said carrier, :1 gluing device normally located outside of the path of the cartons, means for reciprocating said 105 gluing device whereby said gluing device will at each stroke in either direction engage one of the flaps of the carton and travel across the same, means for controlling the movement of said gluing device and carton 110 carrier whereby one carton will be glued durin the forward stroke of the nluing device during a period-of test of the carton carrier, the gluing device remaining stationary while the carton carrier brings an- 115 other carton into lposition for gluing, the gluing device then icing moved through the return stroke. and engaging a flap of said second carton.

In testimon whereof I afiix my signature, 120 in presence 0 two witnesses.

WILLIAM A. JOPLTN.

Witnesses:

WILLIAM A. COPELAND, Amen H. MORRISON. 

